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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A290256 a(n) is the number of parts equal to 1 in the integer partition having viabin number n.

Table of values

n a(n)
1 1
2 2
3 0
4 3
5 1
6 0
7 0
8 4
9 2
10 1
11 1
12 0
13 0
14 0
15 0
16 5
17 3
18 2
19 2
20 1
21 1
22 1
23 1
24 0
25 0
26 0
27 0
28 0
29 0
30 0
31 0
32 6
33 4
34 3
35 3
36 2
37 2
38 2
39 2
40 1
41 1
42 1
43 1
44 1
45 1
46 1
47 1
48 0
49 0
50 0
51 0
52 0
53 0
54 0
55 0
56 0
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 7
65 5
66 4
67 4
68 3
69 3
70 3
71 3
72 2
73 2
74 2
75 2
76 2
77 2
78 2

List of values

[1, 2, 0, 3, 1, 0, 0, 4, 2, 1, 1, 0, 0, 0, 0, 5, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 6, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2]

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